Js form submission

During the examination system, you need to upload the spliced table to the backend and find that the spliced table cannot be obtained directly the day after tomorrow without sending it back. I asked what they have done before and learned about the form submission. In the following example, the content in the form usually includes a text box, single-choice button, multiple-choice button, and press

During the examination system, you need to upload the spliced table to the backend and find that the spliced table cannot be obtained directly the day after tomorrow without sending it back. I asked what they have done before and learned about the form submission. Next let's look at the form.

The content in the form is generally

Text Box, single-choice button, multiple-choice button, button, and drop-down list

To insert some elements, you must first insert a form field to add other elements.

Click a button to trigger some js functions.

The trigger event is generally OnClick = ""; here it marks a function and must be written in the tag. The instance is as follows: